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kotlin wrappers for three.js (https://threejs.org/)

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/*
 * The MIT License
 *
 * Copyright 2017-2018 Lars Ivar Hatledal
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING  FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 */

@file:JsQualifier("THREE")

package info.laht.threekt.loaders

external object DefaultLoadingManager: LoadingManager

/**
 * Handles and keeps track of loaded and pending data. A default global instance of this class is created and
 * used by loaders if not supplied manually - see DefaultLoadingManager.
 *
 * In general that should be sufficient, however there are times when it can be useful to have
 * seperate loaders - for example if you want to show seperate loading bars for objects and textures.
 */
open external class LoadingManager {

    constructor(onLoad: () -> Unit,
                onProgress: () -> Unit = definedExternally,
                onError: () -> Unit = definedExternally)

    var onStart: () -> Unit
    var onLoad: () -> Unit
    var onProgress: () -> Unit
    var onError: () -> Unit


}